Home / 831,115.72-1,146,890.25-482,229.18

Finding the Fourth Proportional to 831,115.72, 1,146,890.25 and 482,229.18

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Solution

The fourth proportional to 831,115.72, 1,146,890.25 and 482,229.18 is: 665,447.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,115.72 : 1,146,890.25 = 482,229.18 : x
  2. Step 2: Convert to fraction form
    831,115.72/1,146,890.25 = 482,229.18/x
  3. Step 3: Cross multiply
    831,115.72x = 1,146,890.25 × 482,229.18
  4. Step 4: Simplify right side
    831,115.72x = 553,063,948,204.15
  5. Step 5: Solve for x
    x = 553,063,948,204.15/831,115.72
  6. Step 6: Final answer
    x = 665,447.59

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Half scale
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Double scale
Find fourth proportional to 831,116.72, 1,146,891.63 and 482,230.18
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.